| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have n't have been [prep] | 5 |
|
| 2 | have not have been [prep] | 5 |
|
| 3 | have [not/n't] have been [prep] | 5 |
|
| 4 | had [adv] have been [prep] | 5 |
|
